About: Why robust background electrolytes containing multivalent ionic species can fail in capillary zone electrophoresis.

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About: Why robust background electrolytes containing multivalent ionic species can fail in capillary zone electrophoresis. Goto Sponge NotDistinct Permalink

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	In this paper it is demonstrated that system peaks are inducted by multivalent weak ionic species in background electrolytes. Their existence is derived from SystCharts and from peak shape diagrams and the theory is confirmed experimentally. If analytes are present in a sample, with mobilities approximately equal to the mobility of a system peak, they interact, resulting in a strong increase of electromigration dispersion. This leads to a strong peak broadening, peak deformation and a loss of resolution. Typical background electrolytes containing multivalent ionic species, e.g. phosphate and phthalate buffers, in literature ofte proposed to be robust electrolytes, are therefore not always universally applicable and can fail for the application of specific analytes. This paper brings a systematic study of the above phenomena and shows theoretical and experimental results for BGEs containing phosphoric acid and phthalic acid. In this paper it is demonstrated that system peaks are inducted by multivalent weak ionic species in background electrolytes. Their existence is derived from SystCharts and from peak shape diagrams and the theory is confirmed experimentally. If analytes are present in a sample, with mobilities approximately equal to the mobility of a system peak, they interact, resulting in a strong increase of electromigration dispersion. This leads to a strong peak broadening, peak deformation and a loss of resolution. Typical background electrolytes containing multivalent ionic species, e.g. phosphate and phthalate buffers, in literature ofte proposed to be robust electrolytes, are therefore not always universally applicable and can fail for the application of specific analytes. This paper brings a systematic study of the above phenomena and shows theoretical and experimental results for BGEs containing phosphoric acid and phthalic acid. (en)
Title	Why robust background electrolytes containing multivalent ionic species can fail in capillary zone electrophoresis. Why robust background electrolytes containing multivalent ionic species can fail in capillary zone electrophoresis. (en)
skos:prefLabel	Why robust background electrolytes containing multivalent ionic species can fail in capillary zone electrophoresis. Why robust background electrolytes containing multivalent ionic species can fail in capillary zone electrophoresis. (en)
skos:notation	RIV/68081715:_____/01:25010008!RIV/2003/AV0/A25003/N
http://linked.open.../vavai/riv/strany	41;49
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(GA203/01/0401), P(GA203/99/0044), P(IAA4031103), P(IAA4031703), Z(AV0Z4031919)
http://linked.open...iv/cisloPeriodika	1
http://linked.open...vai/riv/dodaniDat	2003
http://linked.open...aciTvurceVysledku	Boček, Petr Gebauer, Petr
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Ústav analytické chemie AV ČR, v. v. i.
http://linked.open...dnocenehoVysledku	702249
http://linked.open...ai/riv/idVysledku	RIV/68081715:_____/01:25010008
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	capillary zone electrophoresis; system peaks; organic acids (en)
http://linked.open.../riv/klicoveSlovo	system peaks capillary zone electrophoresis organic acids
http://linked.open...odStatuVydavatele	NL - Nizozemsko
http://linked.open...ontrolniKodProRIV	[BECCE3FBA328]
http://linked.open...i/riv/nazevZdroje	Journal of Chromatography A
http://linked.open...in/vavai/riv/obor	CB
http://linked.open...ichTvurcuVysledku	2 (xsd:int)
http://linked.open...cetTvurcuVysledku	3 (xsd:int)
http://linked.open...ocetUcastnikuAkce	0 (xsd:int)
http://linked.open...nichUcastnikuAkce	0 (xsd:int)
http://linked.open...vavai/riv/projekt	Mapping of electrolyte systems for capillary electrophoresis The use of new analytical instrumentation in research of analytical and diagnostic methods ystem phenomena in analytical capillary electrophoresis Methodology of analytical electrophoresis of samples with complex matrices
http://linked.open...UplatneniVysledku	2001
http://linked.open...v/svazekPeriodika	916
http://linked.open...iv/tvurceVysledku	Boček, Petr Gebauer, Petr Beckers, J. L.
http://linked.open...n/vavai/riv/zamer	Vyvinutí nových metod analytické chemie pro potřeby společenské praxe
issn	0021-9673
number of pages	9 (xsd:int)

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